Background:From 2003 over the course of a decade, the woman was overpaid family tax and childcare benefits, and the Schoolkids bonus because of incorrect Centrelink computer coding.
The woman contacted Centrelink in 2011 after her husband received a sizable pay rise, querying whether she was still entitled to the payments.
Centrelink ruled she was, but three years later the agency discovered its error and asked her to repay the money, which the woman then disputed.